Hi grampam3x, do you mean Yahoo mail won't come up at all, or PDFs in Yahoo mail won't open?

For Yahoo mail attachments, many users are having a problem opening them if they are using an old address, for example, and old bookmark or home page, to open their mail. Could you test by going to your mail through one of these other methods:

This needs updating. I have 11.0.05 most recent and as of today Yahoo mail isn't loading and says i2013-12-16T13:07:31-08:00grampam3xhttps://support.mozilla.org/en-US/questions/964763#answer-512495

This needs updating. I have 11.0.05 most recent and as of today Yahoo mail isn't loading and says it's unprotected.

Mozilla shouldn't fix this because it's not a Mozilla problem. Adobe decided not to support Reader i2013-07-21T06:45:13-07:00AndyTampahttps://support.mozilla.org/en-US/questions/964763#answer-458887

Mozilla shouldn't fix this because it's not a Mozilla problem. Adobe decided not to support Reader in Vista, so their download site will only install version 10.1.4. I don't know how I got 10.1.7 installed, but it also was listed as "Vulnerable" and Out-Of-Date.

You can find the version 11 downloads here: http://get.adobe.com/reader/enterprise/. You will need to select the version for XP or Windows 7 to get it installed. They should work, but Adobe will not support them on Vista. Their answer is to upgrade your operating system to Windows 7/8 or downgrade to XP, which Microsoft will discontinue supporting 4/8/14.

I wonder why mozilla does not fix this issue !
2013-07-12T16:00:15-07:00lseboldhttps://support.mozilla.org/en-US/questions/964763#answer-456107

I wonder why mozilla does not fix this issue !

If you are checking using the Mozilla Plugin Check site, then yes, it treats everything before versi2013-07-11T22:02:28-07:00jscher2000https://support.mozilla.org/en-US/questions/964763#answer-455807

If you are checking using the Mozilla Plugin Check site, then yes, it treats everything before version 11.0.03 as out-of-date. Unfortunately, Adobe does not offer Adobe Reader XI / Adobe Acrobat XI for Vista users (I have no idea why not).

So for the Adobe Reader X / Adobe Acrobat X series, you will have to rely on other sources to confirm that you have the latest update. Probably your quickest source is the in-product updater:

Help &amp;gt; Check for Updates

(Note: The above is based on information gathered in June, but I think it's still current.)